Communication system, communication method, and image forming apparatus

ABSTRACT

In a communication system, an image forming apparatus sends an address of a receiving section to a mobile terminal. The mobile terminal receives a selection of an image data among plural thumbnails displayed on a display section, and wirelessly sends the selected image data to the image forming apparatus with the address. The image forming apparatus receives the selected image data sent with the address by the mobile terminal, and prints an image based on the selected image data. A communication between the mobile terminal and the image forming apparatus is performed wirelessly with an IEEE 802.11 standard. The image forming apparatus deletes the address of the mobile terminal when the communication with the mobile terminal through the receiving section is finished.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional U.S. application Ser. No. 13/904,946,filed May 29, 2013, which is a divisional of U.S. application Ser. No.12/660,825, filed Mar. 3, 2010, which claims priority under 35 U.S.C.§119(a) on Patent Application No. 2009-049652 filed in Japan on Mar. 3,2009, No. 2009-061761 filed in Japan on Mar. 13, 2009, the entirecontents of which are hereby incorporated by reference.

BACKGROUND

1. Technical Field

The present invention relates to a communication system having a mobileterminal and an image forming apparatus; a communication method; and animage forming apparatus.

2. Description of Related Art

In recent years, with the spread of mobile phones having a camerafunction, it is possible to conveniently take digital pictures anytimeanywhere. Moreover, since the capacities of memories included in themobile phones are larger, the mobile phones are increasingly used aspersonal storage devices for storing data, such as digital pictures andbusiness documents. With a reduction in the size and thickness of mobilephones, a memory to be included in a mobile phone is realized by amemory about the size of a fingertip or smaller, namely a card-typememory.

Japanese Patent Application Laid-Open No. 2007-267370 discloses awireless communication method in which when a user moves his/hernoncontact ID card (or wireless communication device incorporating anoncontact ID card) close to a card reader/writer section of an imageprocessing apparatus, an IC chip of the noncontact ID card receives weakradio waves including terminal ID indicating the ID of the imageprocessing apparatus, which are always emitted from the cardreader/writer section, obtains the terminal ID, and sends the user ID ofthe noncontact ID card to the image processing apparatus by using theterminal ID.

Japanese Patent Application Laid-Open No. 2003-32176 discloses acommunication system in which when a user moves a mobile phone includinga noncontact IC card for communicating with a reader/writer of apersonal computer by means of electromagnetic waves close to thepersonal computer and the noncontact IC card receives electromagneticwaves radiated from the reader/writer, the mobile phone notifies thepersonal computer of card ID set for the noncontact IC card, and thenthe personal computer identifies the mobile phone on the basis of thenotified card ID and recognizes it as a communication partner.

SUMMARY

According to an aspect of the present invention, a communication systemhas a mobile terminal and an image forming apparatus. The image formingapparatus includes a receiving section for receiving image data from themobile terminal, and prints an image based on the received image data.The image forming apparatus comprises a sending section that sends anaddress of the receiving section to the mobile terminal. The imageforming apparatus makes the receiving section receive image data sentwith the address by the mobile terminal. A communication between themobile terminal and the image forming apparatus is performed wirelesslywith an IEEE 802.11 standard. The mobile terminal comprises a dataselection receiving section that receives a selection of an image dataamong plural thumbnails displayed on a display section, and an imagedata sending section that wirelessly sends the selected image data tothe image forming apparatus with the address. The image formingapparatus receives the selected image data by the receiving section whenthe selected image data is sent with the address from the mobileterminal. The image forming apparatus comprises a deleting section thatdeletes the address of the mobile terminal when the communication withthe mobile terminal through the receiving section is finished.

The above and further objects and features of the invention will morefully be apparent from the following detailed description withaccompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a conceptual view of a communication system, an informationprocessing system, and an image formation system of Embodiment 1;

FIG. 2 is a block diagram illustrating essential structures of thecommunication system, the information processing system, and the imageformation system of Embodiment 1;

FIG. 3A and FIG. 3B are flowcharts illustrating the processing steps tobe performed by CPUs in a control section of a digital multi-functionperipheral and a control section of a mobile phone;

FIG. 4 is an explanatory view explaining the structure of the storagearea in a contact/noncontact IC card;

FIG. 5 is an exemplary view illustrating one example of a file name listscreen displayed in a display section of the digital multi-functionperipheral;

FIG. 6 is a flowchart illustrating the processing steps to be performedby CPUs in a control section of a digital multi-function peripheral anda control section of a mobile phone of Embodiment 2;

FIG. 7 is an explanatory view explaining an operation performed in themobile phone to select a file to be printed;

FIG. 8 is a flowchart illustrating the processing steps to be performedby a CPU in a control section of a digital multi-function peripheral ofEmbodiment 3;

FIG. 9A and FIG. 9B are flowcharts illustrating the processing steps tobe performed by the CPUs in the control section of the digitalmulti-function peripheral and the control section of the mobile phone ofEmbodiment 3; and

FIG. 10 is an exemplary view illustrating one example of a connectionselection receiving screen.

DETAILED DESCRIPTION

Referring to the drawings, the following description will specificallyexplain some embodiments in which an image forming apparatus (a firstcommunication device, an information processing device) according to thepresent invention is applied to a digital multi-function peripheralhaving a copying function, a printing function etc. The followingexplains examples in which a communication system, an informationprocessing system and an image formation system according to the presentinvention include the digital multi-function peripheral and a mobilephone (a second communication device, a communication terminal device, amobile communication device) as components.

Embodiment 1

FIG. 1 is a conceptual view of a communication system, an informationprocessing system and an image formation system of Embodiment 1, andFIG. 2 is a block diagram illustrating essential structures of thecommunication system, the information processing system and the imageformation system of Embodiment 1. The communication system, informationprocessing system and image formation system of Embodiment 1 include adigital multi-function peripheral 1 and a mobile phone 2.

The digital multi-function peripheral 1 comprises hardware, such as acontrol section 11, an image input section 17, an image processingsection 18, an image output section 19, a storage section 14, a wirelesscommunication section 16, a reader/writer 15, and an operation panel 12which constitute as a whole the digital multi-function peripheral.

The control section 11 includes a CPU for controlling each of theabove-mentioned hardware sections, and a RAM for temporarily storingdata necessary for control. For example, the storage section 14 is anon-volatile semiconductor memory and stores image data subjected toimage processing, and control programs for controlling the respectivehardware sections. In addition, the storage section 14 stores a programfor displaying in the display section 13 various kinds of screens, suchas a later-described file name list screen, and image data receivedthrough the wireless communication section 16. The storage section 14stores a plurality of passkeys in advance. When the CPU of the controlsection 11 receives a passkey through the operation panel 28, 12, itcompares the received passkey with the passkeys stored in the storagesection 14.

The control section 11 loads a control program from the storage section14 as the need arises, and executes the loaded control program toactivate the whole device as an image forming apparatus according to thepresent invention.

The operation panel 12 includes various buttons for receivinginstructions from users, the Enter key for receiving a confirmation ofan instruction, and the ten-key. The operation panel 12 includes thedisplay section 13, such as a liquid crystal display, and displays afile name list screen (content data) about images, documents etc. heldby a mobile phone 2 with which the connection has been established. Thedisplay section 13 is configured to function as a touch panel.

The image input section 17 is reading means for optically reading animage on a document, and comprises a light source for irradiating lighton a document, and an image sensor such as a CCD (Charge CoupledDevice). The image input section 17 focuses a reflected light image fromthe document set at a given reading position onto the image sensor, andoutputs analog electric signals representing RGB (R: Red, G: Green, B:Blue) from the image sensor. The analog electric signals outputted fromthe image input section 17 are inputted into the image processingsection 18.

The image processing section 18 generates digital image data on thebasis of the analog electric signals inputted from the image inputsection 17, performs processing according to the type of the image, andgenerates image data to be outputted. The generated image data isoutputted to the image output section 19, or the wireless communicationsection 16.

The image output section 19 is an image forming section for forming animage desired by a user on a sheet by an electro-photographic method,and forms the image on the basis of the image data outputted from theimage processing section 18 on a sheet of paper, OHP film etc. The imageoutput section 19 comprises a photoreceptor drum; a charger for chargingthe photoreceptor drum to a given electric potential; a laser writingdevice for generating an electrostatic latent image on the photoreceptordrum by emitting laser light according to image data to be processed; adeveloping device for supplying toner to visualize the electrostaticlatent image formed on the surface of the photoreceptor drum; and atransfer device (not shown) for transferring the toner image formed onthe surface of the photoreceptor drum to paper. Instead of forming animage by the electro-photographic method using the laser writing device,an inkjet method, a heat-transfer method, a sublimation method etc. maybe used to form the image

The wireless communication section (first communication means, firstsending/receiving means, receiving means) 16 is compatible with aBluetooth technology, for example, and establishes wirelessly aconnection with other Bluetooth compatible device (for example, alater-described wireless communication section 27) within a given shortdistance (for example, 100 m). More specifically, the wirelesscommunication section 16 (Bluetooth compatible device) has a uniqueBluetooth address (identification data) and is capable of connecting toand communicating with other Bluetooth compatible device by performing aprocess called pairing for specifying (authenticating) parties to beconnected using their mutual Bluetooth address via a temporary shortdistance network called piconet. The piconet is automatically andactively established, or lost, when other Bluetooth compatible devicecomes within a range of a given distance from the wireless communicationsection 16, or out of the range of the given distance. The wirelesscommunication section 16 is not limited to a Bluetooth compatibledevice, and may be a device capable of performing wireless communicationover longer distances or at a higher rate than communication using aRFID system, such as, for example, a device compatible with IEEE802.11.In this case, however, the later-described wireless communicationsection 27 corresponding to the wireless communication section 16 needsto be a device compatible with IEEE802.11.

The reader/writer 15 sends/receives data in a contact/noncontact fashionto/from a later-described contact/noncontact IC card 26 by using anoncontact communication system (RFID (Radio Frequency Identification)system). The following will explain noncontact type communicationbetween the reader/writer 15 and the contact/noncontact IC card 26. Thereader/writer 15 emits an activation signal (electromagnetic wave) allthe time, and when the contact/noncontact IC card 26 and thereader/writer 15 come closer to be able to communicate with each other,the contact/noncontact IC card 26 receives the electromagnetic waveemitted from the reader/writer 15. When the contact/noncontact IC card26 receives the electromagnetic wave emitted from the reader/writer 15,it generates a DC power source by rectifying the carrier wave of thereceived electromagnetic wave and drives an internal circuit by usingthe generated DC power source. Then, the contact/noncontact IC card 26performs amplitude modulation and sends a response signal responding tothe received activation signal to the reader/writer 15. As thenoncontact communication system, for example, a RFID system, such asFelica and Edy, is employed. When the reader/writer 15 receives theresponse signal from the contact/noncontact IC card 26, it sends theunique Bluetooth address (identification data) of the wirelesscommunication section 16 to the contact/noncontact IC card 26.

In order for a Bluetooth compatible device to establish a connectionwith a party to be connected by pairing, it is usually necessary toperform time-consuming operations including searching for addresses ofconnectable devices within a given range and selecting and specifying adevice desired to be connected from the discovered addresses. In thesystem of the present invention, however, such operations are notnecessary when establishing a connection between the mobile phone 2 andthe digital multi-function peripheral 1.

On the other hand, the mobile phone 2 comprises a control section 21, aflash memory 24, a base station communication section 25, an operationpanel 28, an input section 23, an output section 22, acontact/noncontact IC card 26, and a wireless communication section 27.

The control section 21 includes a CPU for controlling the whole device,a ROM for storing programs and various kinds of data, and a RAM capableof performing high-speed writing/reading. The flash memory 24 is alarge-capacity storage device and stores phone numbers, image data,listing data (content data) for displaying a list of file names ofimages, documents etc. held by the mobile phone 2, and thumbnails of theimages.

The base station communication section 25 has a communication interfaceand communicates with a base station. The operation panel 28 includesoperation buttons for receiving user's operations. The input section 23is a camera for obtaining an image by photographing, a microphone forreceiving an input of sounds, etc. The output section 22 is a liquidcrystal monitor for outputting an image, a speaker for outputtingsounds, etc.

The contact/noncontact IC card 26 sends/receives data in acontact/noncontact fashion to/from the reader/writer 15 of the digitalmulti-function peripheral 1 by using a so-called noncontactcommunication system. As described above, a RFID system, such as Felicaand Edy, is employed as the communication system. Like the wirelesscommunication section 16 of the digital multi-function peripheral 1, thewireless communication section (fourth communication means, secondsending/receiving means) 27 is compatible with the Bluetooth technology.When other Bluetooth compatible device (for example, the wirelesscommunication section 16) is within a given short distance (for example,100 m), the wireless communication section 27 is connected to andcommunicates with this device in a wireless fashion.

The following will explain the communication process and the imageformation process to be performed by the digital multi-functionperipheral 1 and the mobile phone 2 in the communication system, theinformation processing system and the image formation system accordingto Embodiment 1. Here, one example of printing an image on the basis ofimage data stored in a user's mobile phone 2 by the digitalmulti-function peripheral 1 will be explained. Note that the digitalmulti-function peripheral 1 is also capable of displaying in the displaysection 13 an image on the basis of image data stored in the mobilephone 2. FIG. 3A and FIG. 3B are flowcharts illustrating the processingsteps to be performed by the CPUs in the control section 11 of thedigital multi-function peripheral 1 and the control section 21 of themobile phone 2. As described above, in the communication system, theinformation processing system and the image formation system accordingto Embodiment 1, both of the digital multi-function peripheral 1 and themobile phone 2 are Bluetooth compatible devices.

The CPU of the digital multi-function peripheral 1 decides whether ornot the mobile phone 2 has approached within a given range (S101). Thedigital multi-function peripheral 1 has the reader/writer 15, and themobile phone 2 has the contact/noncontact IC card 26. The reader/writer15 of the digital multi-function peripheral 1 sends an activation signal(electromagnetic wave) all the time. For example, when the user bringsthe mobile phone 2 very close to the reader/writer 15, thecontact/noncontact IC card 26 of the mobile phone 2 receives theactivation signal sent from the reader/writer 15. When thecontact/noncontact IC card 26 receives the activation signal, it sends aresponse signal responding to the activation signal. When thereader/writer 15 receives the response signal sent from thecontact/noncontact IC card 26, the CPU of the digital multi-functionperipheral 1 decides that the mobile phone 2 has approached within thegiven range.

When the CPU of the digital multi-function peripheral 1 decides that themobile phone 2 has not approached within the given range (S101: NO), itwaits until the mobile phone 2 approaches within the given range. On theother hand, when the CPU of the digital multi-function peripheral 1decides that the mobile phone 2 has approached within the given range(S101: YES), it retrieves a Bluetooth address held by the wirelesscommunication section 16 (hereinafter referred to as the multi-functionperipheral address) and sends it to the reader/writer 15. Then, the CPUof the digital multi-function peripheral 1 sends the multi-functionperipheral address (identification data) through the reader/writer 15(second communication means, sending means) to the contact/noncontact ICcard 26 of the mobile phone 2 (S102).

Meanwhile, the CPU of the mobile phone 2 monitors the contact/noncontactIC card (third communication means, receiving means) 26 and decideswhether or not the multi-function peripheral address has been receivedfrom the multi-function peripheral 1 (S201). When the CPU of the mobilephone 2 decides that the multi-function peripheral address has not beenreceived (S201: NO), it waits until it receives the multi-functionperipheral address. When the CPU of the mobile phone 2 decides that themulti-function peripheral address has been received (S201: YES), itstores the received multi-function peripheral address in the storagearea in the contact/non-contract IC card 26.

FIG. 4 is an explanatory view explaining the structure of the storagearea in the contact/noncontact IC card 26. The storage area in thecontact/noncontact IC card 26 includes a common area 26B and a privatearea 26A (free area). The CPU of the mobile phone 2 writes the receivedmulti-function peripheral address (identification data) in the privatearea (first storing means) 26A in the contact/noncontact IC card 26. Theprivate area 26A is an area that a service provider may use freely.Highly free writing becomes possible by using the private area 26A. Onthe other hand, it is possible to write data in the common area 26B. Inthis case, however, since a remote issuing system for thecontact/noncontact IC card 26 must be used, there is a problem that thedegree of freedom in writing is low.

The CPU of the mobile phone 2 sends a pairing request and the Bluetoothaddress of the wireless communication section 27 (hereinafter referredto as the mobile phone address) to the digital multi-function peripheral1 (S202). Here, the wireless communication section 27 of the mobilephone 2 sends the mobile phone address and data requesting for pairingto the wireless communication section 16 of the digital multi-functionperipheral 1.

The CPU of the digital multi-function peripheral 1 monitors the wirelesscommunication section 16 and decides whether or not a pairing requestand a mobile phone address have been received from a mobile phone 2(S103). When the CPU of the digital multi-function peripheral 1 decidesthat a pairing request and a mobile phone address have not been received(S103: NO), it waits until it receives a pairing request and a mobilephone address. When the CPU of the digital multi-function peripheral 1decides that a pairing request and a mobile phone address have beenreceived (S103: YES), it stores the received mobile phone address in thestorage section (second storing means) 14. The CPU of the digitalmulti-function peripheral 1 displays a passkey input screen asking for apasskey in the display section 13 of the operation panel 12 (S104) andrequests the user to input (enter) a passkey. The CPU of the digitalmulti-function peripheral 1 receives the passkey inputted by the userthrough the operation panel 12 (or the touch panel of the displaysection 13), and stores the received passkey temporarily in the storagesection 14.

The CPU of the digital multi-function peripheral 1 compares the passkeyinputted by the user with a passkey stored in advance in the storagesection 14. If the passkeys match, a connection between the digitalmulti-function peripheral 1 and the mobile phone 2 is established, andthey are set to be ready to communicate with each other. On the otherhand, if the passkeys do not match, the CPU of the digitalmulti-function peripheral 1 displays this fact and a screen asking forthe input of a passkey again in the display section 13.

When a connection is established with the mobile phone 2, the CPU(connection rejecting means) of the digital multi-function peripheral 1starts invalidating connection establishment requests (pairing requests)from other devices (S105). In other words, when a connection isestablished with the mobile phone 2, even if the wireless communicationsection 16 receives data requesting for pairing from other devices, theCPU of the digital multi-function peripheral 1 invalidates the receiveddata.

Thereafter, the CPU (stopping means) of the digital multi-functionperipheral 1 cuts off a power source supplying power to thereader/writer 15 and stops the reader/writer 15 from sending themulti-function peripheral address (S106).

Thus, after the digital multi-function peripheral 1 is connected to onemobile phone 2, it invalidates the pairing requests from other devices,thereby preventing a third party from fraudulently accessing the mobilephone 2 through the digital multi-function peripheral 1 by ill-using themultiple pairing capability of communication using the Bluetoothtechnology. Hence, manipulation and stealing of data in the mobile phone2 through the digital multi-function peripheral 1 are prevented.

Next, the CPU of the digital multi-function peripheral 1 requestslisting data (content data) for displaying a list of file names ofimages, business documents etc. held in the mobile phone 2 (S107). Morespecifically, the CPU of the digital multi-function peripheral 1 sendsdata requesting for listing data to the mobile phone 2 through thewireless communication section 16.

When the wireless communication section 27 receives the data requestingfor listing data from the digital multi-function peripheral 1, the CPUof the mobile phone 2 retrieves the listing data of the file names ofimages, documents etc. stored in the flash memory 24 and sends it to thedigital multi-function peripheral 1 through the wireless communicationsection 27 (S203).

The CPU of the digital multi-function peripheral 1 obtains through thewireless communication section (obtaining means) 16 the listing datasent from the mobile phone 2 (S108) and stores it in the storage section14.

The CPU (display means) of the digital multi-function peripheral 1displays in the display section 13 the file name list screen forreceiving from the user the selection of a file desired to be printed onthe basis of the listing data stored in the storage section 14 (S109).

FIG. 5 is an exemplary view illustrating one example of the file namelist screen displayed in the display section 13 of the digitalmulti-function peripheral 1. In the file name list screen, a pluralityof file names on the basis of the listing data of the file namesreceived from the mobile phone 2 are displayed, for example, in ascrollable way. Moreover, in the file name list screen, a thumbnail of afile selected by the user by operating the operation panel 12 (or thetouch panel of the display section 13) is displayed. Further, in thefile name list screen, soft keys such as “Number of Copies”, “Zoom” and“Print” are displayed. The CPU of the digital multi-function peripheral1 may receive print settings, such as the number of copies to be printedand the scale to be changed, from the user through the operation panel12 (or the touch panel of the display section 13). The user selects afile desired to be printed, enters print settings through this screen,and instructs to start printing by operating the “Print” soft key. Inthis case, since the user selects a desired file on the large displaysection 13 of the digital multi-function peripheral 1 instead ofoperating a small key while looking at the small liquid crystal monitorof the mobile phone 2, better image viewing performance and keyoperation performance are obtained.

The CPU of the digital multi-function peripheral 1 monitors theoperation panel 12 and the touch panel of the display section 13, anddecides whether or not the selection of a file has been received fromthe user (S110). When the CPU of the digital multi-function peripheral 1decides that it has not received the selection of a file (S110: NO), itwaits until the selection of a file is received. On the other hand, whenthe CPU of the digital multi-function peripheral 1 decides that it hasreceived the selection of a file (S110: YES), it decides whether or notis has received a print instruction from the user (S111). The decisionhere is made by the CPU by monitoring the operation panel 12 and thetouch panel of the display section 13.

When the CPU of the digital multi-function peripheral 1 decides that ithas not received a print instruction (S111: NO), it waits until a printinstruction is received. When the CPU of the digital multi-functionperipheral 1 decides that it has received a print instruction (S111:YES), it requests the mobile phone 2 for image data of a file selected(hereinafter referred to as the selected file) (S112). Here, thewireless communication section 16 makes the request by sending themobile phone 2 data requesting for sending the image data of theselected file.

The CPU of the mobile phone 2 monitors the wireless communicationsection 27 and decides whether or not there is a request for the imagedata of the selected file from the digital multi-function peripheral 1(S204). When the CPU of the mobile phone 2 decides that there is norequest for the image data of the selected file (S204: NO), it waitsuntil it receives a request for the image data. When the CPU of themobile phone 2 decides that there is a request for the image data of theselected file (S204: YES), it retrieves from the flash memory 24 theimage data of the selected file requested from the digitalmulti-function peripheral 1, and sends it to the digital multi-functionperipheral 1 through the wireless communication section 27 (S205).

When the CPU of the digital multi-function peripheral 1 receives throughthe wireless communication section 16 the image data of the selectedfile from the mobile phone 2 (S113), it stores the received image datain the storage section 14.

Then, the CPU of the digital multi-function peripheral 1 sends the imagedata stored in the storage section 14 to the image output section 19,and prints an image on the basis of the image data by the image outputsection 19 (S114).

The CPU of the digital multi-function peripheral 1 sends data notifyingthe result of printing, such as printing has been completed normally, ora printing error has occurred, through the wireless communicationsection (notifying means) 16 to the mobile phone 2 (S115).

The CPU of the mobile phone 2 obtains data notifying the result ofprinting from the digital multi-function peripheral 1 through thewireless communication section 27 (S206) and stores it in the flashmemory 24.

Next, the CPU of the mobile phone 2 sends through the output section 22an output on the basis of the data notifying the result of printingstored in the flash memory 24 (S207). Here, for example, the output maybe implemented by displaying text notifying the result of printing inthe liquid crystal monitor of the mobile phone 2, or outputting througha speaker of the mobile phone 2 a voice notifying the result ofprinting, or a warning sound.

After the notification of the result of printing, the CPU of the digitalmulti-function peripheral 1 decides whether or not printing is to befinished (S116). Here, for example, the CPU of the digitalmulti-function peripheral 1 displays text asking “Do you want to finishprinting?” and soft keys representing “YES” and “NO” in the displaysection 13 and monitors an operation of the display section 13 (touchpanel) to make the decision.

When the CPU of the digital multi-function peripheral 1 decides not tofinish printing (S116: NO), it returns to the process of step S109,displays the file name list screen again in the display section 13, andreceives the selection of a file desired to be printed from the user.When the CPU of the digital multi-function peripheral 1 decides tofinish printing (S116: YES), then it decides whether or notcommunication is to be finished (S117). Here, for example, the CPU ofthe digital multi-function peripheral 1 displays text asking “Do youwant to finish communication?” and soft keys representing “YES” and “NO”in the display section 13 and monitors an operation of the displaysection 13 (touch panel) to make the decision.

When the CPU of the digital multi-function peripheral 1 decides not tofinish communication (S117: NO), it returns to the process of step S116again. On the other hand, when the CPU of the digital multi-functionperipheral 1 decides to finish communication (S117: YES), it sends datastating that communication is finished to the mobile phone 2 through thewireless communication section 16 to notify that printing is finished(S118).

The CPU (second deleting means) of the digital multi-function peripheral1 deletes the mobile phone address received in step S103 and the passkeyreceived in step S104 from the storage section 14 (S119). It is thuspossible to prevent a third party with malicious intent from ill-usingthe communication history and stealing the mobile phone address. Notethat the decision as to whether or not to finish printing, or thedecision as to whether or not to finish communication between thedigital multi-function peripheral 1 and the mobile phone 2, is notnecessarily made on the basis of an instruction from the user, and, forexample, a decision to finish printing or communication may be made whenthe display section 13 (touch panel) is not operated for a given periodof time.

The CPU of the digital multi-function peripheral 1 cancels the settingof invalidating connection establishment requests from other devices,which was started in step S105 (S120), and finishes the process.

For example, after sending an output indicating normal completion instep S207, the CPU of the mobile phone 2 monitors the wirelesscommunication section 27 and decides whether or not a notification ofcompletion of communication has been received in a given period of time(S208). When the CPU of the mobile phone 2 decides that a notificationof completion of communication has not been received even after thegiven period of time (S208: NO), the CPU of the mobile phone 2 returnsto the process of step S204 and decides whether or not there is arequest for image data from the digital multi-function peripheral 1. Onthe other hand, when the CPU (first deleting means) of the mobile phone2 decides that a notification of completion of communication has beenreceived (S208: YES), it deletes the multi-function peripheral addressreceived in step S201 from the storage area in the contact/noncontact ICcard 26 (S209) and finishes the communication.

As described above, in the communication system, the informationprocessing system and the image formation system of Embodiment 1, theuser of the mobile phone 2 receives the multi-function peripheraladdress from the digital multi-function peripheral 1, and sends datafrom the mobile phone 2 to the digital multi-function peripheral 1 byusing the multi-function peripheral address. It is thus possible toprevent confidential information (such as, for example, the address andpasskey) in the mobile phone 2 from leaking against the user'sintention. Moreover, after finishing the communication, the receivedBluetooth address (and the received passkey) of the partner are deletedfrom each of the digital multi-function peripheral 1 and the mobilephone 2. Hence, it is possible to prevent leakage of the communicationhistory (the Bluetooth address and passkey of the partner), and it isalso possible to prevent the Bluetooth address of the connected partyobtained whenever pairing is made from wastefully occupying the resourceof each of the digital multi-function peripheral 1 and the mobile phone2, thereby enabling more effective use of the resources of the digitalmulti-function peripheral 1 and the mobile phone 2.

Embodiment 1 described above has explained the configuration in whichthe user manually inputs a passkey so as to certainly input the passkey.However, if simplicity has priority, the passkey may be sent/receivedthrough the reader/writer 15 of the digital multi-function peripheral 1and the contact/noncontact IC card 26 of the mobile phone 2.

For a device (such as a mouse and a head set) which is not capable ofinputting a passkey, the passkey may be set to a fixed value, or astructure that eliminates the need of inputting the passkey may beconfigured. For instance, in such a device that is not capable ofinputting a passkey, a simple combination of numbers such as, forexample “0000” may be set as the default passkey.

Embodiment 2

The following will explain a communication process and an imageformation process which are performed by a digital multi-functionperipheral 1 and a mobile phone 2 in a communication system, aninformation processing system, and an image formation system accordingto Embodiment 2. Parts similar to those in Embodiment 1 described abovewill be designated with the same reference codes, and detailedexplanations thereof will be omitted.

The following will explain an example in which an image on the basis ofimage data stored in a user's mobile phone 2 is printed by the digitalmulti-function peripheral 1. In the communication system, theinformation processing system and the image formation system ofEmbodiment 2, sending and receiving of a passkey is performed throughthe reader/writer 15 of the digital multi-function peripheral 1 and thecontact/noncontact IC card 26 of the mobile phone 2. FIG. 6 is aflowchart illustrating the processing steps to be performed by the CPUsin the control section 11 of the digital multi-function peripheral 1 andthe control section 21 of the mobile phone 2.

The user of the mobile phone 2 operates the mobile phone 2 to select afile to be printed (S401). FIG. 7 is an explanatory view explaining anoperation performed in the mobile phone 2 to select a file to beprinted. The liquid crystal monitor (output section 22) of the mobilephone 2 displays thumbnails of image data stored in the flash memory 24,and receives the selection of any of the thumbnails made by moving thecursor by operating a key (such as a press button on the operation panel28). When a thumbnail is selected, the output section 22 displays thefile name (of the selected file) corresponding to the selected thumbnailand an image larger than the thumbnail as illustrated in FIG. 7. In astate in which the file to be printed is selected as illustrated in FIG.7, the user brings the mobile phone 2 very close to the reader/writer 15of the digital multi-function peripheral 1.

Meanwhile, the CPU of the digital multi-function peripheral 1 decideswhether or not the mobile phone 2 has approached within a given range(S301). More specifically, when the reader/writer 15 has received aresponse signal sent by the contact/noncontact IC card 26 of the mobilephone 2 in respond to an activation signal sent by the reader/writer 15,the CPU of the digital multi-function peripheral 1 decides that themobile phone 2 has approached within the given range. When the CPU ofthe digital multi-function peripheral 1 decides that the mobile phone 2has not approached within the given range (S301: NO), it waits until themobile phone 2 approaches with the given range. When the CPU of thedigital multi-function peripheral 1 decides that the mobile phone 2 hasapproached within the given range (S301: YES), it retrieves theBluetooth address (the multi-function peripheral address) and thepasskey held by the wireless communication section 16, and sends them tothe contact/noncontact IC card 26 of the mobile phone 2 (S302). Morespecifically, the CPU of the digital multi-function peripheral 1 sendsthe retrieved multi-function peripheral address and passkey to thereader/writer 15, and then the reader/writer 15 sends them to thecontact/noncontact IC card 26 of the mobile phone 2. The passkey may bestored in the wireless communication section 16 together with themulti-function peripheral address, or may be stored in the storagesection 14.

The CPU of the mobile phone 2 monitors the contact/noncontact IC card 26and decides whether or not the multi-function peripheral address and thepasskey have been received (S402). When the CPU of the mobile phone 2decides that the multi-function peripheral address and the passkey havenot been received (S402: NO), it waits until it receives themulti-function peripheral address and the passkey. When the CPU of themobile phone 2 decides that the multi-function peripheral address andthe passkey have been received (S402: YES), it stores the receivedmulti-function peripheral address and passkey in the storage area in thecontact/non-contract IC card 26.

Next, the CPU of the mobile phone 2 tries to establish a connection withthe digital multi-function peripheral 1 by sending the mobile phoneaddress and passkey stored in the wireless communication section 27 tothe digital multi-function peripheral 1 through the wirelesscommunication section 27 (S403). The passkey may be stored in thewireless communication section 27 together with the mobile phoneaddress, or may be stored in the flash memory 24.

When the CPU of the digital multi-function peripheral 1 receives themobile phone address and passkey from the mobile phone 2 through thewireless communication section 16 (S303), it stores the mobile phoneaddress and passkey in the storage section 14. Pairing is completed byreceiving the mobile phone address and passkey, and the digitalmulti-function peripheral 1 and the mobile phone 2 are connected to eachother and set to be ready to communicate with each other.

Next, the CPU of the mobile phone 2 notifies the establishment ofconnection by sending data indicating that a connection has beenestablished to the digital multi-function peripheral 1 through thewireless communication section 27 (S404).

The CPU of the digital multi-function peripheral 1 receives thenotification of the establishment of connection indicating that aconnection has been established from the mobile phone 2 through thewireless communication section 16 (S304). Then, the CPU of the digitalmulti-function peripheral 1 starts to invalidate connectionestablishment requests (pairing requests) from other devices (S305). Inother words, when a connection is established, even if the wirelesscommunication section 16 receives data requesting for pairing, the CPUof the digital multi-function peripheral 1 invalidates the data.Moreover, the CPU of the multi-function peripheral 1 cuts off the powersource supplying power to the reader/writer 15 and stops thereader/writer 15 from sending the multi-function peripheral address(S306).

After notifying the establishment of connection, the CPU of the mobilephone 2 retrieves the image data of the file selected in step S401 fromthe flash memory 24 and sends it to the digital multi-functionperipheral 1 through the wireless communication section 27 (S405).

The CPU of the digital multi-function peripheral 1 receives the imagedata from the mobile phone 2 through the wireless communication section16 (S307), and stores the received image data in the storage section 14.Next, the CPU of the digital multi-function peripheral 1 sends the imagedata stored in the storage section 14 to the image output section 19 andprints an image on the basis of the image data by the image outputsection 19 (S308).

The CPU of the digital multi-function peripheral 1 sends data notifyingthe result of printing, such as normal completion of printing, oroccurrence of an error during printing, to the mobile phone 2 throughthe wireless communication section 16 (S309).

The CPU of the digital multi-function peripheral 1 deletes the mobilephone address and passkey received in step S303 from the storage section14 (S310). Thus, stealing of the mobile phone address by a third partywith malicious intent is prevented.

Thereafter, the CPU of the digital multi-function peripheral 1 cancelsthe setting of invalidating connection establishment requests (pairingrequests) from other devices, which was started in step S305, (S311) andfinishes the process.

Meanwhile, the CPU of the mobile phone 2 obtains the data notifying theresult of printing from the digital multi-function peripheral 1 throughthe wireless communication section 27 (S406), and stores it in the flashmemory 24.

The CPU of the mobile phone 2 sends though the output section 22 anoutput on the basis of the data notifying the result of printing storedin the flash memory 24 (S407).

Moreover, the CPU of the mobile phone 2 deletes the multi-functionperipheral address and passkey received in step S402 from the storagearea in the contact/noncontact IC card 26 (S408), and completes theprocess. Thus, stealing of the multi-function peripheral address by athird party with malicious intent is prevented.

As described above, in the communication system, the informationprocessing system and the image formation system according to Embodiment2, by just bringing the mobile phone 2 which selected a file to beprinted beforehand close to the digital multi-function peripheral 1, thedigital multi-function peripheral 1 is caused to print the file, andthus the printing operation is extremely facilitated.

The above description has explained an image forming apparatus, a mobileinformation terminal device, a communication system, an informationprocessing system, and an image formation system according to thepresent invention by illustrating an example including the digitalmulti-function peripheral 1 (image forming apparatus) and the mobilephone 2. However, the present invention is not limited to this. Forexample, the mobile phone 2 may be a digital camera, a mobile computer,or a mobile terminal device called a PDA, with a communication function.Moreover, the present invention may have not only a structure forsending data from the mobile phone 2 to the digital multi-functionperipheral 1, but also a structure for sending document image data readby a scanner of the digital multi-function peripheral 1 to the mobilephone 2. Further, the present invention may have a structure for sendingfacsimile image data, electronic data etc. stored in the storage devicein the digital multi-function peripheral 1 to the mobile phone 2. Inaddition, it is possible to produce the same effects as those of thepresent invention between devices, each of which having two or morecommunication means for communicating with each other like thereader/writer 15 and the wireless communication section 16 in thedigital multi-function peripheral 1 (the image forming apparatus) andthe contact/noncontact IC card 26 and the wireless communication section27 in the mobile phone 2.

Although Embodiment 2 explains an example in which when the user bringsthe mobile phone 2 very close to the reader/writer 15 of the digitalmulti-function peripheral 1, the multi-function peripheral address issent from the reader/writer 15 to the contact/noncontact IC card 26 ofthe mobile phone 2, the present invention is not limited to this. Forinstance, the present invention may be configured to send the mobilephone address from the contact/noncontact IC card 26 of the mobile phone2 to the reader/writer 15 of the digital multi-function peripheral 1when the user brings the mobile phone 2 very close to the reader/writer15 of the digital multi-function peripheral 1.

In Embodiments 1 and 2 described above, although deletion of the addressand passkey is performed in only one way, a mobile phone 2 may beprovided with a control section for sending a deletion instruction. Inthis configuration, even if an image forming apparatus (a digitalmulti-function peripheral 1) having no deletion control section is used,the address stored in the digital multi-function peripheral 1 iscertainly deleted by an address deletion instruction from the mobilephone 2, thereby further enhancing security. Moreover, the presentinvention may be configured to let the user to decide whether to deleteor keep the addresses stored in the digital multi-function peripheral 1and the mobile phone 2, and receive an instruction according to theresult of decision. For example, in the case when the user communicateswith the digital multi-function peripheral 1 many times at shortintervals, if data about the addresses and passkey are left in thedigital multi-function peripheral 1 and the mobile phone 2, there is amerit that the digital multi-function peripheral 1 and the mobile phone2 are enabled to communicate with each other without the process ofbringing the mobile phone 2 very close to the digital multi-functionperipheral 1.

Although Embodiments 1 and 2 describe an example in which the digitalmulti-function peripheral 1 (the image forming apparatus) receives imagedata from the mobile phone 2 and prints an image (forms an image) on thebasis of the image data, the present invention is not limited to this.Needless to say, the present invention produces similar effects evenwhen performing so-called data processing (or information processing)such as, for example, receiving text data from a mobile computer or amobile terminal device called a PDA and editing the text data, orreceiving image data and scaling or rotating the image data.

Embodiment 3

The following will explain a communication process and an imageformation process which are performed by a digital multi-functionperipheral 1 and a mobile phone 2 in an information processing systemand an image formation system according to Embodiment 3. Parts similarto those in Embodiment 1 described above will be designated with thesame reference codes, and detailed explanations thereof will be omitted.

In Embodiment 3, when the CPU of the digital multi-function peripheral 1sends the unique Bluetooth address (identification data, unique address)of the wireless communication section 16 through the reader/writer 15 toan external device, it stores this fact in the storage section 14.

In Embodiment 3, the operation panel 12 of the digital multi-functionperipheral 1 has the “Connection Establishment Restriction” key forreceiving from a user the selection of a connection establishmentrequest to be accepted by the digital multi-function peripheral 1. Whenthe user operates the “Connection Establishment Restriction” key on theoperation panel 12, the display section 13 displays a connectionselection receiving screen for receiving from the user the selection ofa connection establishment request to be accepted by the digitalmulti-function peripheral 1. Moreover, the operation panel 12 ofEmbodiment 3 displays in the display section 13 an image (screen) on thebasis of data received from the mobile phone 2 with which the connectionhas been established.

Next, an outline of the functions of the digital multi-functionperipheral 1 of Embodiment 3 will be explained. The following willexplain an example in which the digital multi-function peripheral 1obtains image data from the mobile phone 2 and prints an image on thebasis of the obtained image data. In Embodiment 3, thecontact/noncontact IC card 26 of the mobile phone 2 communicates withthe reader/writer 15 of the digital multi-function peripheral 1 by anoncontact communication system (RFID system), and the wirelesscommunication section 27 of the mobile phone 2 performs wirelesscommunication with the wireless communication section 16 of the digitalmulti-function peripheral 1 by a Bluetooth communication system. Themobile phone 2 retrieves listing data of the file names of images,documents etc. stored in the flash memory 24, according to a requestfrom the digital multi-function peripheral 1, and sends it to thedigital multi-function peripheral 1.

When the mobile phone 2 has approached within a range of a givendistance, the digital multi-function peripheral 1 sends the Bluetoothaddress of the wireless communication section 16 (the multi-functionperipheral address) from the reader/writer 15 to the contact/noncontactIC card 26 of the mobile phone 2, and stores data indicating this factin the storage section 14. FIG. 8 is a flowchart illustrating theprocessing steps to be performed by the CPU in the control section 11 ofthe digital multi-function peripheral 1 of Embodiment 3.

The CPU of the digital multi-function peripheral 1 decides whether ornot the mobile phone 2 has approached within a given range (S501). Morespecifically, when the reader/writer 15 receives a response signal sentfrom the contact/noncontact IC card 26 of the mobile phone 2 in respondto an activation signal sent by the reader/writer 15, the CPU of thedigital multi-function peripheral 1 decides that the mobile phone 2 hasapproached within the given range.

When the CPU of the digital multi-function peripheral 1 decides that themobile phone 2 has not approached within the given range (S501: NO), itwaits until the mobile phone 2 approaches within the given range. Whenthe CPU of the digital multi-function peripheral 1 decides that themobile phone 2 has approached within the given range (S501: YES), itretrieves the multi-function peripheral address held by the wirelesscommunication section 16 and sends it to the reader/writer 15. Then, theCPU of the digital multi-function peripheral 1 sends the multi-functionperipheral address through the reader/writer 15 to thecontact/noncontact IC card 26 of the mobile phone 2 (S502). Themulti-function peripheral address sent to the contact/noncontact IC card26 of the mobile phone 2 is stored in the storage section in thecontact/noncontact IC card 26. Note that the mobile phone 2 writes thereceived multi-function peripheral address in the private area 26A (seeFIG. 4) in the contact/noncontact IC card 26.

Next, the CPU of the digital multi-function peripheral 1 stores in thestorage section 14 data indicating that the multi-function peripheraladdress was sent by the reader/writer 15. For example, a job statusmanagement area for storing the status of sending the multi-functionperipheral address by the reader/writer 15 is provided in a part of thestorage area in the storage section 14. The CPU of the digitalmulti-function peripheral 1 writes “Stopped” in the job statusmanagement area in the storage section 14 before the multi-functionperipheral address is sent by the reader/writer 15, and writes(rewrites) “Executing” in the job status management area in the storagesection 14 after the reader/writer 15 sent the multi-function peripheraladdress (S503).

Thereafter, the CPU of the digital multi-function peripheral 1 performsa later-described connection establishment and data receiving process(S504).

After completing the connection establishment and data receivingprocess, the CPU of the digital multi-function peripheral 1 writes“Stopped” again in the storage section 14 (S505), and finishes theprocess.

Next, the connection establishment and data receiving process will beexplained in detail. FIG. 9A and FIG. 9B are flowcharts illustrating theprocessing steps to be performed by the CPUs in the control section 11of the digital multi-function peripheral 1 and the control section 21 ofthe mobile phone 3 of Embodiment 3.

The CPU of the digital multi-function peripheral 1 monitors the“Connection Establishment Restriction” key on the operation panel 12,and displays the connection selection receiving screen in the displaysection 13 when the user operates the “Connection EstablishmentRestriction” key. The CPU (selection receiving means) of the digitalmulti-function peripheral 1 receives through the connection selectionreceiving screen the selection of a connection establishment request tobe accepted by the digital multi-function peripheral 1 (S601).

This process will be explained in detail below. As a method for anexternal device to make a connection establishment request to thedigital multi-function peripheral 1 (wireless communication section 16),two patterns are considered. In the first pattern, a device whichreceived the multi-function peripheral address sent from thereader/writer 15 makes a connection establishment request to thewireless communication section 16 of the digital multi-functionperipheral 1 by using the received multi-function peripheral address. Inshort, this is a connection establishment request (first connectionestablishment request) from the recipient of the multi-functionperipheral address. In the second pattern, a device which did notreceive the multi-function peripheral address makes a connectionestablishment request to the wireless communication section 16 of thedigital multi-function peripheral 1. Namely, this is a connectionestablishment request (second connection establishment request) fromother than the recipient of the multi-function peripheral address. Asthe second pattern, there may be a case where other Bluetooth compatibledevice within a given short distance (for example 100 m) from thedigital multi-function peripheral (the wireless connection device 16)searches for and obtains the multi-function peripheral address of thedigital multi-function peripheral 1 (the wireless communication section16) and makes a connection establishment request by using the obtainedmulti-function peripheral address, or a case where other Bluetoothcompatible device makes a connection establishment request by using thecommunication history if it communicated with the digital multi-functionperipheral 1 (the wireless communication section 16) in the past. Thedigital multi-function peripheral 1 of Embodiment 3 may establish apattern of connection selected from these two patterns according to aneed. The above-described first pattern is called the “via pattern” andthe second pattern is called the “direct pattern” below.

FIG. 10 is an exemplary view illustrating one example of the connectionselection receiving screen. Selections (soft keys) representing “1.Allow only requests via the reader/writer”, “2. Allow only directrequests”, and “3. Allow both” are displayed in the connection selectionreceiving screen, and the user may select one of them by suitablyoperating the operation panel 12 (or the touch panel). The CPU of thedigital multi-function peripheral 1 stores the selection receivedthrough the connection selection receiving screen in the storage section14. For example, when “1. Allow only requests via the reader/writer” isselected, only connection establishment requests corresponding to “viapattern” are accepted. When “2. Allow only direct requests” is selected,only connection establishment requests corresponding to “direct pattern”are accepted. When “3. Allow both” is selected, connection establishmentrequests corresponding to “via pattern” and “direct pattern” areaccepted.

When the CPU of the mobile phone 2 decides that the multi-functionperipheral address has been received from the digital multi-functionperipheral 1 (see S502), it stores the received multi-functionperipheral address in the storage area in the contact/noncontact IC card26. The CPU of the mobile phone 2 which received the multi-functionperipheral address makes a connection establishment request to thedigital multi-function peripheral 1 (S701). More specifically, the CPUof the mobile phone 2 sends the Bluetooth address of the wirelesscommunication section 27 (the mobile phone address) and data requestingfor pairing to the wireless communication section 16 of the digitalmulti-function peripheral 1 through the wireless communication section27.

The CPU of the digital multi-function peripheral 1 monitors the wirelesscommunication section 16 and decides whether or not there is aconnection establishment request (or a pairing request) from the mobilephone 2 (S602). When the CPU of the digital multi-function peripheral 1decides that there is not a connection establishment request (S602: NO),it waits until a connection establishment request is made by the mobilephone 2. When the CPU of the digital multi-function peripheral 1 decidesthat it has received a connection establishment request (S602: YES), itstores the mobile phone address received from the mobile phone 2 in thestorage section 14.

Next, the CPU of the digital multi-function peripheral 1 decides, on thebasis of the data stored in the storage section 14, whether or not theselection received in step S601 is “via pattern” (S603). When the CPU ofthe digital multi-function peripheral 1 decides that the selection is“via pattern” (S603: YES), it decides whether or not the connectionestablishment request received in step S602 was the connection of “viapattern” (via the reader/writer 15) (S604). Here, by referring to thedata stored in the job status management area in the storage section 14,the CPU of the digital multi-function peripheral 1 decides whether ornot the connection establishment request received in step S602 is aconnection establishment request (a first connection establishmentrequest) from the device (mobile phone 2) to which the reader/writer 15sent the multi-function peripheral address.

More specifically, if “Executing” is written in the job statusmanagement area in the storage section 14, the multi-function peripheraladdress was already sent by the reader/writer 15, and therefore the CPUof the digital multi-function peripheral 1 decides that the receivedconnection establishment request is a request for connectionestablishment of “via pattern” from the recipient device (mobile phone2) to which the multi-function peripheral address was sent. If “Stopped”is written in the job status management area in the storage section 14,the reader/writer 15 has not sent the multi-function peripheral address,and therefore the CPU of the digital multi-function peripheral 1 decidesthat the received connection establishment request is a connectionestablishment request of “direct pattern” from a device which is not therecipient of the multi-function peripheral address.

When the CPU of the digital multi-function peripheral 1 decides that theconnection establishment request received in step S602 was theconnection of “via pattern” (via the reader/writer 15) (S604: YES), itdisplays the passkey input screen asking for the input of passkey in thedisplay section 13 of the operation panel 12 (S605), and asks the userto input the passkey to establish a connection according to the receivedconnection establishment request. The CPU of the digital multi-functionperipheral 1 receives the input of the passkey from the user through theoperation panel 12 (or the touch panel of the display section 13) andstores the received passkey temporarily in the storage section 14.

When the CPU of the digital multi-function peripheral 1 decides that theconnection establishment request received in step S602 was not theconnection of “via pattern” (via the reader/writer 15) (S604: NO), itdecides that a connection establishment request of “direct pattern” wasmade, and invalidates the received connection establishment request(S617) and finishes the process.

In step S603, when the CPU of the digital multi-function peripheral 1decides that the received selection is not “via pattern” (S603: NO),then it decides whether or not the received selection is “directpattern” (S614).

When the CPU of the digital multi-function peripheral 1 decides that thereceived selection is not “direct pattern” (S614: NO), then it decidesthat “3. Allow Both” was selected, and moves the process to step S605.

When the CPU of the digital multi-function peripheral 1 decides that thereceived selection is “direct pattern” (S614: YES), it decides whetheror not the connection establishment request received in step S602 wasthe connection of “via pattern” (via the reader/writer 15) (S615).

When the CPU of the digital multi-function peripheral 1 decides that theconnection establishment request received in step S602 was not theconnection of “via pattern” (via the reader/writer 15) (S615: NO), itdisplays the passkey input screen asking for the input of passkey in thedisplay section 13 of the operation panel 12 (S605) and requests theuser to input the passkey in order to establish a connection in respondto the received connection establishment request.

On the other hand, when the CPU of the digital multi-function peripheral1 decides that the connection establishment request received in stepS602 was the connection of “via pattern” (via the reader/writer 15)(S615: YES), it decides that it received a connection establishmentrequest of “via pattern”, and invalidates the received connectionestablishment request (S616) and finishes the process.

The CPU of the digital multi-function peripheral 1 compares the passkeyreceived through the passkey input screen displayed in step S605 withthe passkey stored in advance in the storage section 14. If the passkeysmatch, the CPU of the digital multi-function peripheral 1 establishes aconnection with the mobile phone 2 (or completes pairing). Hence, thedigital multi-function peripheral 1 and the mobile phone 2 are set to beready to communicate with each other. On the other hand, when the CPU ofthe digital multi-function peripheral 1 decides that the passkeys do notmatch, it displays this fact and the screen asking for the input ofpasskey again in the display section 13.

Next, the CPU of the digital multi-function peripheral 1 requests thelisting data of file names by sending data requesting for the listingdata of the file names of images, documents etc. held by the mobilephone 2 with which the connection has been established to the wirelesscommunication section 27 of the mobile phone 2 through the wirelesscommunication section 16 (S606).

When the CPU of the mobile phone 2 receives the data requesting for thelisting data from the digital multi-function peripheral 1 (S702), itretrieves the requested listing data from the flash memory 24 and sendsit to the digital multi-function peripheral 1 through the wirelesscommunication section 27 (S703).

The CPU of the digital multi-function peripheral 1 receives through thewireless communication section 16 the listing data sent from the mobilephone 2 (S607), and stores it in the storage section 14.

The CPU of the digital multi-function peripheral 1 displays, on thebasis of the listing data stored in the storage section 14, the filename list screen for receiving the selection of a desired file to beprinted from the user as illustrated in FIG. 5 in the display section 13(S608).

The CPU of the digital multi-function peripheral 1 receives theselection of a file from the user through the operation panel 12 and thetouch panel of the display section 13 (S609), and sends data requestingfor image data of the file selected (selected file) to the mobile phone2 through the wireless communication section 16 (S610).

When the CPU of the mobile phone 2 receives the request for the imagedata of the selected file from the digital multi-function peripheral 1(S704), it retrieves the image data of the selected file from the flashmemory 24 and sends it to the digital multi-function peripheral 1through the wireless communication section 27 (S705).

When the CPU of the digital multi-function peripheral 1 receives theimage data of the selected file from the mobile phone 2 through thewireless communication section 16 (S611), it stores the received imagedata in the storage section 14.

Next, the CPU of the digital multi-function peripheral 1 sends the imagedata stored in the storage section 14 to the image output section 19 andprints an image on the basis of the image data received from the mobilephone 2 by the image output section 19 (S612).

After printing is executed completely, the CPU of the digitalmulti-function peripheral 1 cuts off the connection to the mobile phone2 (S613) and finishes the communication. At this time, the CPU of thedigital multi-function peripheral 1 may delete the mobile phone addressreceived in step S602 and the passkey received in step S605 from thestorage section 14.

Although Embodiment 3 explains a configuration in which the usermanually inputs the passkey in order to certainly input the passkey, thepasskey may be sent and received through the reader/writer 15 of thedigital multi-function peripheral 1 and the contact/noncontact IC card26 of the mobile phone 2 if simplicity has priority.

For a device which is not capable of inputting a passkey (such as amouse and a headset), the passkey may be set to a fixed value, or thedevice may be configured to eliminate the necessity of inputting thepasskey. For example, for such a device which is not capable ofinputting a passkey, a simple combination of numbers such as, forexample, “0000” may be set as the default passkey.

The digital multi-function peripheral 1 may be configured to stopsending the multi-function peripheral address from the reader/writer 15,or stop supplying power to the reader/writer 15, when the “directpattern” is set in the digital multi-function peripheral 1. In such aconfiguration, since the reader/writer 15 of the digital multi-functionperipheral 1 is disabled to send the multi-function peripheral address,communication via the reader/writer 15 is completely blocked.

The present invention may also be configured so that if the mobile phone2 is brought very close to the reader/writer 15 of the digitalmulti-function peripheral 1 when “direct pattern” is set, a messagestating that only Bluetooth connection establishment is currentlyavailable, or a message stating that only Bluetooth connectionestablishment is to be requested, is displayed in the display sections22 and 13 of the mobile phone 2 and the digital multi-functionperipheral 1, respectively. With this display, the user notices his/hermistake and may easily understand the way to deal with the mistake. Onother hand, if a request for connection establishment by “directpattern” is made by an external device when the “via pattern” is set, amessage stating that only connection establishment by “via pattern” iscurrently available, or a message stating that connection establishmentby “via pattern” is to be requested, may be displayed in the displaysections 22 and 13 of the mobile phone 2 and the digital multi-functionperipheral 1, respectively.

In Embodiment 3, although a decision as to whether or not a connectionestablishment request received by the digital multi-function peripheral1 (the wireless communication section 16) is “via pattern” or “directpattern” is made on the basis of whether or not “Executing” is stored inthe job status management area in the storage section 14 of the digitalmulti-function peripheral 1, the present invention is not limited tothis. For example, the present invention may be configured so that ifthe mobile phone 2 is brought very close to the reader/writer 15 of thedigital multi-function peripheral 1 when the digital multi-functionperipheral 1 is set to the “via pattern”, the reader/writer 15 sends themulti-function peripheral address and a flag indicating thatcommunication is performed via the reader/writer 15 to the mobile phone2. In this case, when establishing a connection between the digitalmulti-function peripheral 1 and the mobile phone 2 later, the mobilephone 2 sends the flag together with a connection establishment requestto the digital multi-function peripheral 1. Then, the digitalmulti-function peripheral 1 decides whether the connection establishmentrequest received from the mobile phone 2 is a request for connectionestablishment via the reader/writer 15 or a request for connectionestablishment of “direct pattern” by confirming whether or not the datacorresponding to the connection establishment request includes the flag.In other words, if the flag is not confirmed even when “via pattern” isset, the digital multi-function peripheral 1 decides that the request isa request for connection establishment of “direct pattern”, and rejectsthe connection establishment request. Such a configuration makes itpossible to more accurately decide whether a received connectionestablishment request is a request for connection establishment of “viapattern”, or “direct pattern”.

The user of the digital multi-function peripheral 1 may select a methodsuitable for him/her from these setting methods to enable only aconnection according to a connection method suitable for him/her. Thepresent invention may be configured to allow a manager, instead of auser, to select a connection method. For instance, in the case of arental digital multi-function peripheral installed in a conveniencestore, when the manager sets the digital multi-function peripheral toallow only “via pattern”, even if a request for connection establishmentby Bluetooth is made outside the store, this request is rejected, andtherefore it is possible to enable only a customer using the digitalmulti-function peripheral inside the store to use Bluetoothcommunication via the reader/writer.

In the case where the digital multi-function peripheral is used in alimited environment, such as within a company, for example, if not onlycommunication of “via pattern”, but also communication of “directpattern” is enabled, even when the user sits distant from the digitalmulti-function peripheral 1, he/she may establish a connection with thedigital multi-function peripheral 1 without moving to the digitalmulti-function peripheral 1. As described above, since a connectionmethod is selectable, it is possible to select a connection methodsuitable for the use situation or the installation situation of thedigital multi-function peripheral 1, and it is also possible to enhancesecurity performance.

Although the above description explains an example in which the mobilephone 2 sends data to the digital multi-function peripheral 1, thepresent invention is not limited to this. For example, document imagedata read by the scanner of the digital multi-function peripheral 1 maybe sent to other digital multi-function peripheral, or facsimile imagedata, electronic data etc. stored in the storage section of the digitalmulti-function peripheral 1 may be sent to other digital multi-functionperipheral. Further, if two or more communication means are providedlike the reader/writer 15 and the wireless communication section 16 ofthe digital multi-function peripheral 1, it is possible to produce thesame effects as those of the present invention.

As this invention may be embodied in several forms without departingfrom the spirit of essential characteristics thereof, the presentembodiments are therefore illustrative and not restrictive, since thescope of the invention is defined by the appended claims rather than bythe description preceding them, and all changes that fall within metesand bounds of the claims, or equivalence of such metes and boundsthereof are therefore intended to be embraced by the claims.

What is claimed is:
 1. A communication system having a mobile terminaland an image forming apparatus that comprises a receiving section forreceiving an image data from the mobile terminal and prints an imagebased on the received image data, wherein the image forming apparatuscomprises a sending section that sends an address of the receivingsection to the mobile terminal, the image forming apparatus makes thereceiving section receive an image data sent with the address by themobile terminal, a communication between the mobile terminal and theimage forming apparatus is performed wirelessly with an IEEE 802.11standard, the mobile terminal comprises: a data selection receivingsection that receives a selection of an image data among pluralthumbnails displayed on a display section; and an image data sendingsection that wirelessly sends the selected image data with the addressto the image forming apparatus, the image forming apparatus makes thereceiving section receive the selected image data, when the selectedimage data is sent with the address from the mobile terminal, and theimage forming apparatus comprises a deleting section that deletes theaddress of the mobile terminal when the communication with the mobileterminal through the receiving section is finished.
 2. The communicationsystem according to claim 1, wherein the image forming apparatuscomprises a notification section that wirelessly notifies an errorinformation to the mobile terminal when an error occurs.
 3. Thecommunication system according to claim 1, wherein the image formingapparatus comprises a rotation processing section that rotates the imagedata when the receiving section receives the image data sent with theaddress.
 4. A communication method with a mobile terminal and an imageforming apparatus that comprises a receiving section for receiving animage data from the mobile terminal and prints an image based on thereceived image data, wherein the image forming apparatus sends anaddress of the receiving section to the mobile terminal, the imageforming apparatus makes the receiving section receive an image data sentwith the address by the mobile terminal, a communication between themobile terminal and the image forming apparatus is performed wirelesslywith an IEEE 802.11 standard, the mobile terminal receives a selectionof an image data among plural thumbnails displayed on a display section,the mobile terminal wirelessly sends the selected image data with theaddress to the image forming apparatus, the image forming apparatusmakes the receiving section receive the selected image data, when theselected image data is sent with the address from the mobile terminal,and the image forming apparatus deletes the address of the mobileterminal when the communication with the mobile terminal through thereceiving section is finished.
 5. An image forming apparatus,comprising: a sending section that wirelessly sends an address of areceiving section to a mobile terminal with a IEEE 802.11 standard,wherein the receiving section receives an image data from the mobileterminal; an image data receiving section that makes the receivingsection receive an image data selected among plural thumbnails displayedon the mobile terminal, when the selected image data is wirelessly sentfrom the mobile terminal with the address; and a deleting section thatdeletes the address of the mobile terminal when the communication withthe mobile terminal through the receiving section is finished.
 6. Theimage forming apparatus according to claim 5, further comprising: anotification section that wirelessly notifies an error information tothe mobile terminal when an error occurs.
 7. The image forming apparatusaccording to claim 5, further comprising: a rotation processing sectionthat rotates the image data when the receiving section receives theimage data sent with the address.